| commit | 0ccc7153ccd8fbecefb0793a65cd5a85cdb099fc | |
| author | H.J. Lu <hjl.tools@gmail.com> | |
| Sun, 22 Oct 2017 15:03:46 +0000 (22 08:03 -0700) | ||
| committer | H.J. Lu <hjl.tools@gmail.com> | |
| Sun, 22 Oct 2017 15:05:15 +0000 (22 08:05 -0700) | ||
| tree | e1e3035d3f0048d9b822ce6a4c9128f90ce5e946 | treesnapshot (tar.gz zip) |
| parent | fe596486d694e657413d0d4c5a04598674ff71b1 | commitdiff |
x86-64: Add logf with FMA
For workload-spec2017.wrf, on Skylake, it improves performance by:
Before After Improvement
reciprocal-throughput 16.1534 13.8874 16%
latency 41.9642 34.3072 22%
* sysdeps/x86_64/fpu/multiarch/Makefile (libm-sysdep_routines):
Add e_logf-fma.
(CFLAGS-e_logf-fma.c): New.
* sysdeps/x86_64/fpu/multiarch/e_logf-fma.c: New file.
* sysdeps/x86_64/fpu/multiarch/e_logf.c: Likewise.
For workload-spec2017.wrf, on Skylake, it improves performance by:
Before After Improvement
reciprocal-throughput 16.1534 13.8874 16%
latency 41.9642 34.3072 22%
* sysdeps/x86_64/fpu/multiarch/Makefile (libm-sysdep_routines):
Add e_logf-fma.
(CFLAGS-e_logf-fma.c): New.
* sysdeps/x86_64/fpu/multiarch/e_logf-fma.c: New file.
* sysdeps/x86_64/fpu/multiarch/e_logf.c: Likewise.
| ChangeLog | diffblobblamehistory | |
| sysdeps/x86_64/fpu/multiarch/Makefile | diffblobblamehistory | |
| sysdeps/x86_64/fpu/multiarch/e_logf-fma.c | [new file with mode: 0644] | blob |
| sysdeps/x86_64/fpu/multiarch/e_logf.c | [new file with mode: 0644] | blob |